Experimental Evaluation of Hygienic Conditions in Domestic Dishwashers

Abstract

Abstract Rising environmental concerns lead to use of lower temperatures and to reduced water consumption in domestic dishwashing. The development of new dishwashers with reservoir for reusage of water from the final rinse seeks to reduce the costs per cleaning cycle, but leads to concerns about the hygienic conditions of domestic dishwashers, as the presence of stable communities of microorganisms has been reported. This study investigates the hygienic conditions of different types of domestic dishwashers and the long-term effect of process parameters on the hygiene in dishwashers with water reservoirs.